Apattern follows the rule "starting with one, every consecutive line has a number one more than twice the previous line".1. how many marbles must be in the fourth line?

The fourth line will have 15 marbles

Step-by-step explanation:

The third line has 7 marbles. So, you double that and add one in order to find the number of marbles in the fourth line.

7*2=14

14+1=15

john has 55 candy left.

answer:

c. the third graph